Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 1998-11-01 → 1998-11-30 |
| MCL | Health-based | Resolved | 1998-08-01 → 1998-08-31 |
| MCL | Health-based | Archived | 1991-12-01 → 1991-12-31 |
| MCL | Health-based | Archived | 1988-07-01 → 1988-09-30 |
| MR | Monitoring | Resolved | 2015-10-01 → 2015-12-31 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2007-07-01 → 2007-09-30 |
| MR | Monitoring | Resolved | 2006-11-01 → 2006-11-30 |
| MR | Monitoring | Resolved | 2004-01-01 → 2004-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 179.8 µg/L 14% of the EPA limit 1300 µg/L
worst single sample: 250 µg/L | 67/67 | SYR4 | 2013–2019 |
| Nitrate | 3000 µg/L 30% of the EPA limit 10000 µg/L | 64/64 | SYR4 | 2012–2019 |
| Arsenic | 8.95 µg/L 89% of the EPA limit 10 µg/L
worst single sample: 9.1 µg/L | 16/16 | SYR4 | 2012–2019 |
| TTHM | 17.275 µg/L 22% of the EPA limit 80 µg/L
worst single sample: 18.4 µg/L | 16/16 | SYR4 | 2012–2019 |
| Fluoride | 1665 µg/L 42% of the EPA limit 4000 µg/L
worst single sample: 1770 µg/L | 15/15 | SYR4 | 2012–2018 |
| Lead | 13.675 µg/L 91% of the EPA limit 15 µg/L
worst single sample: 15.3 µg/L | 14/67 | SYR4 | 2013–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Di(2-ethylhexyl) Phthalate | 4.8 µg/L 80% of the EPA limit 6 µg/L | 9/33 | SYR4 | 2012–2018 |
| Barium | 33.25 µg/L 1.7% of the EPA limit 2000 µg/L
worst single sample: 35 µg/L | 8/8 | SYR4 | 2012–2018 |
| Lithium | 35 µg/L No EPA limit set | 8/8 | UCMR-5 | 2024 |
| Chromium | 4.875 µg/L 4.9% of the EPA limit 100 µg/L
worst single sample: 5.1 µg/L | 4/8 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 2285 µg/L 23% of the EPA limit 10000 µg/L
worst single sample: 2300 µg/L | 4/4 | SYR4 | 2012 |
| Total Haloacetic Acids (HAA5) | 2.94 µg/L 4.9% of the EPA limit 60 µg/L
worst single sample: 3.1 µg/L | 3/16 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.9000 pCi/L 18% of the EPA limit 5 pCi/L | 2/8 | SYR4 | 2012–2018 |
| Toluene | 5.1 µg/L 0.5% of the EPA limit 1000 µg/L | 1/30 | SYR4 | 2012–2019 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Arizona Water Co - Oracle
Is Arizona Water Co - Oracle tap water safe to drink?
EPA monitoring detected 15 contaminants in Arizona Water Co - Oracle's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Arizona Water Co - Oracle's water?
EPA monitoring detected Copper, Nitrate, Arsenic, TTHM, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Arizona Water Co - Oracle serve?
Arizona Water Co - Oracle reports serving 10,585 people in Arizona, per its EPA record.
Has Arizona Water Co - Oracle had any water quality violations?
The EPA has 18 violations on file for Arizona Water Co - Oracle, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.